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  1. #1
    amimmortal's Avatar
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    Knocking from front o/s wheel

    Hi all,

    We've just returned from a 400 mile round trip to the in-laws with no problems to report. Then, this morning, on a drive up to Perth, I became aware of a noticeable knocking sound coming from the o/s front wheel (I think).

    It was most obvious at about 55mph, but could be heard clearly up to and beyond 70mph - it was noisiest when going downhill and disappeared completely when I braked. It didn't seem to make any difference if I was steering left or right at the time. It doesn't seem to be making any noise at lower speeds.

    I recently had the front discs and pads changed, and the front o/s calliper was also replaced as the old one had seized, apparently.

    The car's just turned over 69,000 miles. The o/s CV boot kit was fitted at 44,000 miles, and the n/s was done at 47,000 miles. Additionally, the n/s front lower ball joint was replaced at 51,000 miles.

    Any tips welcome!

    Cheers,

    A.

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  3. #2
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    I was about to post a thread but i have some similarities on my a3.
    i think the noise started when i swapped tyres front to back. A whoomp whoomp whoomp rotational noise from driver side wheel when doing about 30-70 mph round sweeping left bends. Not wheel bearing.
    Today i eventually finished upgrading to 312 discs n pads, the whoomp noise has gone but after about 30mph i hear a noise like something scraping at a point of the rotation. The noise changes when pressing brakes.

    Due to this i think it could be a calliper related issue. My passenger calliper looked in better condition than driver side.

    I can't understand the issue though , why would a calliper cause this noise.
    '02 TDi 130 Sport: Mods to date: BXP 160 conversion, EGR delete, Decat, Helix SMF fast road clutch, 312mm front rotors, full DIS , CC, Xenons.
    VCDS fully registered and happy to help.
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  4. #3
    amimmortal's Avatar
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    Hi all,

    Turns out the new disc is rubbing against the metal guard plate. Not sure why - could be that the discs fitted were too thick. Either way, nothing too serious.

    Garage has pledged to get it sorted for me either way.

    Cheers!

    A.

  5. #4
    TwistedMind's Avatar
    Long Live The A6

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    Metal guard plates are made from tin foil ! LOL very bendy !
    Audi A6 1.9TDI 2000
    Love the problems !

  6. #5
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    Low speed Knocking......front and rear lower control arms.... and then the upper ones.

    Lower ball joints not easy.....upper pinch bolts right cow...

    Then the engine mounts?

  7. #6
    amimmortal's Avatar
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    Hi all,

    Car now back and all noise gone. The guard just needed adjusting so hopefully that's the last of that...

    A.

 

 

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